Not to nitpick but the original Vex Mythoclast was a win-button. I saw good PVPers get destroyed fighting the lucky few to have it. Every single match was going to the side that had that weapon. Right after finishing off Atheon a buddy took a completely un-upgraded Vex into crucible and at worst did a 1.5 k/d, that was someone who didn't even play crucible. The current Thorn doesn't even come close to those days. Nothing has or ever did.